TP-Link AV600 Powerline Network Extender.
When you cannot run a physical ethernet line or get a good Wi-Fi signal to your DMB product then this TP-Link AV600 Powerline Extender just may fix the issue. In simple terms the AV600 is a 2 piece product. 1 AV600 plugs into your router ethernet port and into the wall AC power socket. You then plug the 2nd AV600 unit to your DMB product and plug it into the wall AC power socket next to your DMB. Once both AV600's are paired they will transmit the routers ethernet line over your home's AC power lines to form a solid and reliable connection. No Wi-Fi issues, no running a line to impossible locations.
 
Using advanced Home Plug AV technology, TL-PA4010 KIT provides users with AV600 powerline speeds on a line length of up to 750 ft. The dimensions for this product are 2 x 1.1 x 2.6 inches.  Actual data speeds vary and may be limited by the product’s Ethernet port and other network conditions such as data traffic, electrical noise, and wiring issues. For better performance, powerline devices should be deployed on the same electrical circuit and rated for the same HomePlug standard. A minimum of two powerline devices are required to establish a powerline connection. If you are uncertain about your network conditions, you should consult an IT professional to assist in selecting a networking product.